Universal rudder for flying-machines.



WILLIAM KRIEDTER AND WILLIAM BOURBON, 0F NEW YORK, N. Y.

Specification of Letters Patent.

Application filed May 27, 1910.

Patented July 4, 1911.

Serial No. 563,732.

To all whom 'it' may concern:

Be it known that we, VILLIAM KRIEDTER and W'ILLIAM BOURBON, bothcitizens of the United States, and residents of the city of New York,borough of Manhattan, in the county and State of New York, have inventeda new and Improved Universal Rudder for Flying-Machines, of which thefollowing is a full, clear, and exact description.

Our invention relates to flying machines, our more particular purposebeing to provide a universal rudder for service upon said machines;.thatis to say, a rudder having a vertical movement for controlling altitudeand a horizontal movement for controlling directions relative to thepoints of the compass-the rudder having surfaces disposed at differentangles for enabling movements of the rudder to be eected.

Our invention further relates to the provision in a rudder of both aplane and a box, in order to give to the rudder a maximum of usefulnessas regards its ability to confer movements of different kinds upon theflying machine, and also to increase the stability of the flying machineas controlled by the rudder.

Reference is to bevhad to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both the views.

Figure 1 is a fragmentary perspective showing our combinational ruddercomplete and ready for use; and Fig. 2 is a perspective showing therudder as it appears when seen from a different angle from thatassociated with Fig. 1; Fig. 2 further showing the means whereby theoperator is enabled to shift the rudder into different positions.

Frame members 3 converge forwardly of the machine to cylindricalbearings 4. These bearings support a horizontal rocking shaft 5 andconnected with the latter is a cross bracket 6. A tiller post 7 extendsupward through this cross bracket and is provided with arms 8, 9extending a short distance toward the rear. The arms 8, 9 are rigidrelatively to the tiller post 7 and are provided with cylindricalbearings 10, 11. A rudder post 12 is journaled in the bearings 10, 11and supports a rib 13 .which extends backwardly a distance, and is thenbent upwardly, thus forming the bottom and rear edge of the rudder.Extending from the vertical portion of this rib to the tiller post 12are various horizontal ribs 14. Mounted upon the upper end of the rib 13are two ribs 15 bent outwardly from each other at the top, and extendingfrom the upper and outer portion of each rib 15 over to the opposite rib15, is a bow 16. Two other ribs l5 extend upwardly and outwardly fromthe rudder post l2 and are similarly connected by a bow 16. Extendingfrom one bow 16 to the other are rods 16a. At 17 is la web which ismounted in part by the rib 13, and at 18 are also webs which are bentoutwardly at their uppermost portions, their outer edges thus beingsecured to the rods 16a. Webs 19 extend from one of the bows 16 to theopposite bow 16, and also from one to the other of the rods 16a. Guycords 20, 21 extend from the outer ends of the ribs 15 down to thebottom of the rudder and cross each other.

A steering rod 22 is by aid of a pivot joint 23 connected with the topend of the tiller post. At 24 (Fig. 2) is a spool which is mounted upona sleeve 25. A. cord 26 is given several wraps around the spool 24 andis connected securely to the same, the ends of the cord being connectedto opposite ribs 16a. At 27 are bearings, one of which is shown in Fig.2, and which support both the rod 22 and the sleeve 25. At 28 is asteering wheel connected rigidly with t-he sleeve 25, and at 29 is ahead against which bears the end of the sleeve. At 30 is a rib mounteddirectly upon the rudder post 12, and this rib carries a web 31, whichlies in the same plane as the web 17 and for some purposes may beconsidered as practically a continuation of the latter.

The various webs and the ribs supporting the same together make up arudder, the upper portion of which, because of its analogy to a boxkite, we designate as a box. The air can flow freely through thisbox-that is, beneath the web 19 and above the webs 18. The box greatlyincreases the stability of the rudder and correspondingly increases thestability of the flying machine as a whole. The operator, by moving thesteering wheel in the general direction of the length of the rod 22,pushes and pulls this rod endwise, and thereby causes the entire rudderand parts immediately associated with it to tilt upon the axis of thebearings 4 as a center. By turning the steering wheel 28 so as to rotateor partially rotate the sleeve 25, the operator turns the spool 24 andin so doing he turns the rudder upon the axis of the bearings l0, 11 asa center. The rudder as a whole thus has two distinct motions bothcontrollable at will by the operator. First, a forward motion inadjusting the ightnftlie machine to dierent altitudes; second, ahorizontal or lateral motion which steers the flying machine todifferent points of the compass. While the universal rudder is thussusceptible of two distinct movements for two separate purposes, thestability of the box at the top of the rudder is considerable under allconditions.

Having thus described our invention, we claim as new and desire tosecure by Let-- ters Patent: v

l. A combinational rudder for flying machines, comprising a frameprovided with bearings, a rocking shaft jo'urnaled within said bearings,a tiller po-st connected with said rocking shaft and adapted to tilt,said tiller post being provided with arms carrying bearings, Va rudderpost jouinaled in said last-mentioned bearings, a rudder journaledwithin said last-mentioned bearings,

said rudder being providedwith surfacesww extending at different angles,and means controllable at will for tilting said rudder 2. Acombinational rudder'for'flying ma-Y s chines, comprising a rockingshaft, means for supporting the same, a tiller post con-Y nected withsaid rocking shaft and adapted to tilt in a direction -crossing thegeneral direction of said rocking shaft, a rudder post journaledrelatively to said tiller post and substantially parallel with the same,and a rudder mounted upon said tiller post and provided with surfacesextending in different planes, and means for controlling horizontal andvertical movements of said rud der.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

VILLIAM KRIEDTER. VILLIAM BOURBON. Witnesses AGNES BARRETT, LIzzIE S.CowEN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

